Door fasteners



Oct. 4, 1955 E. D. LoNGcoR 2,719,746

DOOR FASTENERS Original Filed Jan. 17, 1946 fnvefzor: EZrI/erlangcor 12 12'/ 33m HalsAor'n/eg United States Patent() DOOR FASTENERS Elmer D. Longcor, Hartford, Conn.

Claims. (Cl. 292-292) This invention relates to a type of closure fasteners particularly identified as portable door securing devices. Objects of the invention are to provide such a fastener in a form that is strong in construction, effective in operation, simple to manufacture and use and compact and attractive in design. The invention consists of a bolt, a casing for the bolt and a spring within the casing operable to effect relative movement between the casing and bolt as in applying the device to a door and to retract the bolt within the casing when the device is removed from a door. Other features ofthe invention are clearly illustrated in the accompanying drawings and fully set forth in the following detailed description while the novelty of the invention is defined in the appended claims.

In the drawings,

Figure 1 is a horizontal sectional view of doorway parts having associated therewith a device constructed in accordance with my invention.

Figure 2 is a view similar to Fig. l except that the securing device is shown in the position in which it is applied preparatory to adjusting it to the position in which it is shown in Fig. 1.

Figure 3 is a view of the securing device only and shows a bolt and actuating spring retracted Within their casing.

Figure 4 is a sectional view on line 4 4 of the casing shown in Fig. 3 with a bolt and actuating spring shown in elevation.

Figure 5 is a view similar to Fig. 4 but with a bolt extended from the casing, and

Figure 6 is an end View of the device.

This application is a substitute for my abandoned prior application Serial No. 641,822, tiled January 17, 1946.

Referring to the drawing certain parts with which the device of my invention cooperates to secure a door will be sufficiently identified by brief reference thereto as follows. The door 1 is fitted with the usual case 2 containing latch 3 which is operable through opening 4 of the latch case for engagement with or release from opening 5 of striker plate 6, they latter being supported by jamb 7. See Figs. 1 and 2.

The door securing device by itself, hereinafter referred to as the fastener, includes a casing 10 having the form of a tube with extremities thereof swaged together to form relatively thin flat ends 11 and 12. Extending through opposed walls of casing 10 and also through the flat ends 11 and 12 is a channel 13 forming a narrow guideway having a tlatwise extent that is normal to a plane which is coincident with the flatwise extent of flat ends 11 and 12. On one side of casing 10 between webs 14 and 15 which hold the casing together and which terminate extremities of channel 13 is a slot 16 providing latch shoulders 17 and 18 for a purpose that will presently appear.

The purpose of guideway 13 is to receive a blade or bolt 19 having a shank 20, which, adjacent each end thereof merges into a at head. The head at one end of bolt 19 is designated by 22 and is provided with oppostely disposed shoulders 23 and 24. Similarly the head 25 at the ICC other end of bolt 19 is provided with oppostely disposed shoulders 26 and 27.

For retaining bolt 19 in its guideway 13 of casing 10 the shank portion 20 of the bolt within the casing is surrounded by a spring 28. When the fastener is thus formed of its assembled parts and it is not associated with a door, the spring 28 is free to assume its maximum expansion within the casing and between shoulders 24 and 27 of bolt 19 thereby retaining the bolt in its extreme retracted position within casing 10. See Fig. 3.

It may be noted at this point that openings corresponding to 4 and 5 respectively in latch plate casing 2 and striker plate 6 may vary in size somewhat to suit the weight of fittings appropriate for doors of different size. Preferably therefore, bolt heads 22 and 25 are made of different size so that the more appropriate one may be selected for application to a particular door.' Y

Preparatory to applying the fastener to secure a door the appropriate end of bolt 19 is withdrawn from casing 10 until the head at the opposite end is engageable with slot 16. Assuming that head 22 is to be employed for fastening a door as shown in Fig. l, bolt 19 is withdrawn from the casing until head 25 may be entered into slot 16 with shoulder 26 against shoulder 18 in which position the bolt will be temporarily held under urge of compressed spring 28. See Fig. 5. With latch 3 withdrawn the exposed end of bolt 19 is next entered between door 1 and jamb 7 (see Fig. 2) until head 22 is opposite openings 4 and 5 respectively in latch case 2 and striker plate 6. The fastener is then given aquarter turn to position" bolt head 22 with shoulder 23 against latch casing 2 and shoulder 24 against striker plate 6. Casing 10 is next manipulated to release head 25 from slot 16 thereby permitting the casing to be moved by spring 28 into position to place flat end 11 in the crevice between door 1 and jamb 7. Thus held under tension of spring 28,.no turning of the casing and bolt about the longitudinal axis thereof can occur and inpthis position-ofthe fastener the door is elfectively secured. n l

While the fastener is shown and described as having each end operable for application thereofto secure a door it will be understood'that it may be constructed with one end only so effective. So too the invention in' other respectsis not limited to the exact form set forth but may be varied without departure from the scope ofthe invention as defined by the appended claims.

Having thus described my invention, what I claim is: Y l. A portable door securing device including a bolt merging adjacent one end thereof into a liat headhaving oppostely disposed shoulders extending transversely to the longitudinal extent of the bo1tsaid bolt when held with its at head suitably aligned with the crevice between a closed door and its jamb, being insertable between the ydoor and jamb to a position where `the head s iiankdon one side by the latchv `opening of the latch cas'ing supported by the door and on the other side by the latch opening of the striker plate supported by the jamb, so that partial rotation of the bolt serves to engage the shoulders of the bolt head respectively with the door latch casing and the jamb striker plate to thereby lock the door in closed relation, with a flattened end, said casing also having a channel presenting walls which engage opposed sides of the bolt and prevent rotation of the bolt relative to the casing, and a spring within the casing engaging the bolt and effective to draw the casing surrounding the bolt toward the head end of the bolt to thereby enter the flattened end of the casing into the crevice between the door and jamb so that the bolt and casing are secured against movement about their longitudinal axis.

2. A portable door securing device of the type wherein a bolt is providedv with a flat head having oppostely disa casing for the bolt provided j posed shoulders extending transversely to the longitudinal extent of `th`e"bolt,`wsaid bolt when held with its'at' head suitably aligned with the crevice between a closed door and ,its jalmb, being insertable between the door yand jarnb 'tijl a'position where Vthe head is anked on one side by the latch opening of the latch casing supported by the door fand ontheother side by the latch opening of the striker plate' supported bythe jarnb, soV that partial rotation of the bolt serves to engage the shoulders of the bolt head respectively with the door latch casing and the jamb striker plate to thereby lock the door in closed relation, including in combination, a tubeattened at the ends thereof to forrn a casing and longitudinally channeled to form a guideway substantially normal to the ilatwise extent of the ends of the casing, ya bolt comprising a shank merging into a flat head adjacent each end of saidshank, said bolt vbeing zendwise movable in the guideway but restrained thereby relative to the Vcasing against rotation about its longitudinal axis, and a spring confined within the casing for engagement with either head of the bolt whereby when leither bolt head is placed in locking position with respect to a doorand its jamb said spring is effective to move the casing and enter a respective attened end thereof into the crevice Vbetween the door :and its jamb to thereby prevent turning ofthe bolt.

3. A portable door securing device of the type wherein a bolt is provided with a flat head having oppositely disposed shoulders extending transversely to the longitudinal extent of the bolt, said bolt when held with its at head suitablyV aligned with the lcrevice between a door and its jamb being insertable between the door and jamb to a position where the head is flanked on one side by the latch opening of .the latch casing supported by theV door and on the other side by the latch opening of the striker vplate supported by the jamb, so that partial rotation of the bolt serves to engage the shoulders of the bolt head respectively with -the kdoor latch casing and the jamb striker plate to thereby lock the door in closed relation, including in combination, a tube swaged together at its extremities to form a casing with at ends, said casing being longitudinally channeled through opposite walls and attened ends thereof to Vform a guideway with the transverse extent of the guideway substantially normalto the ilatwise extent of the ends of the casing, a bolt comprising a shank merging into a ilat head adjacent each end of said shank,rsaid bolt being endwise movable relative to theV casing while engaged in the guideway in opposite sides of Athe casing, and a spring within the casing engageable with the boltwhereby when either bolt head is placed in locking position with respect to a door and its jamb said spring is effective to move the casing and enter the tlattened end thereof into the crevice between a door and its jamb to thereby prevent turning of the bolt.

4. A portable door securing device of the type wherein a bolt is ,provided with a llat head having oppositely dis- ,posed "shoulders extending transversely to the longitudinal'extent of the bolt, said bolt when held with its flat head suitably aligned with the crevice between a door 4 and its jamb, being insertable between the door and jai-nb to ya `position where the'heald is flanked on one Vsidebjf'the latch opening of the latch casing supported by the door and on the other side by the latch opening of the striker plate supported by the jamb, so that partial rotation of the bolt serves to engage the shoulders of the bolt head respectively with the door latch casing and the jamb striker plate to thereby lock the door in closed relation, including in combination, an elongated casing having a flattened end, said casing being Vlongitudinally channeled through opposite side walls thereoffand the attened end to form Va guideway, with the transverse extent thereof substantially normal to the atwiseextent of the flattened Y end of the casing, a bolt comprising a shank merging into a head adjacent the end `of said shank, said bolt being endwise movable relative to the casing while engaged in the guideway on opposite sides of the casing, and a spring within the casing to retain the bolt and resist endwise movement thereof. i

5. A portable door securing device of Vthe type wherein a bolt is provided with a flat head having oppositely disposed shoulders extending transversely to .the longitudinal extent of the bolt, said bolt lwhen held with its llat head suitably aligned with the crevice between a closed door and its jarnb, being insertabllev between the door and jamb to la position where the head is tianked on one side by the latch opening of the latch casing supported by the door and on the other side by the latch opening of the striker plate supported by the jamb, so that partial rotation of the bolt serves to engage the shoulders of the bolt head respectively with the door latch casing and the jamb striker plate to thereby lock the door in closed relation, including in combination, a tube swaged together at its extremities to form a casing with flat ends, said casing being longitudinally channeled 4through opposite side Walls and iiattened ends thereof to form a guideway with the transverse extent of the guideway substantially normal to the il'atwise extent of the ends of the casing, the latter also having a slot in aside Wall thereof, a bolt comprising a shank merging into a flat head adjacent each end of ysaid shank, said bolt being endwise movable relative to the casing while engaged in the lguideway on opposite sides of the casing, and a spring within the casing `surrounding the shank of the bolt, said bolt being movable against the tension of the spring to a position Where one head of the bolt maybe engaged with the'slot Vin a `side wall of the casing tothereby retain the bolt ,in position with its otherv end extended ybeyond the casing. 

